Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 124 days ago

Senior Backend Engineer (Java / Kotlin / AWS)

ProMedia Group20 open roles

Where
Torun, Kujawsko-Pomorskie, Poland
Work mode
On site
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowSenior Backend Engineer (Java / Kotlin / AWS)ProMedia Group · Torun, Kujawsko-Pomorskie, Poland

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on ProMedia Group's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

13.7% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.3%1 day
  2. 4.8%3 days
  3. 13.7%7 days
  4. 22.1%14 days
  5. 37.6%30 days
  6. 59.1%60 days
This job: posted 124 days ago

The posting

Company Description

Routescanner is the world's leading container logistics intelligence platform, helping shippers, freight forwarders, and cargo owners discover, compare, and optimize intermodal container routes based on transit times, carrier reliability, and CO₂ emissions. Our platform connects thousands of logistics professionals with actionable, real-time routing data – making global supply chains more efficient, resilient, and sustainable.

We're growing fast, and we're looking for a senior backend engineer who doesn't need hand-holding to thrive.

Job Description

The Role

You'll be a core member of a small, high-ownership engineering team building and evolving the distributed microservices backend that powers Routescanner. You'll work across a complex domain – route optimization, schedule ingestion, geo-routing, and carrier data – at real scale, on AWS.

This is not a role for someone who waits for specs to land in their inbox. You'll take full ownership of services from design through production, make architectural decisions, and proactively identify and fix problems before they become incidents.

What You'll Work On

  • Design, build, and maintain JVM-based microservices (Java / Kotlin) running on AWS ECS, App Runner, and Lambda
  • Work with a rich data layer: PostgreSQL, DynamoDB, RedShift, Redis, and S3
  • Build and consume event-driven integrations via RabbitMQ and SNS
  • Collaborate on API design across REST (API Gateway) and BFF patterns
  • Instrument services with OpenTelemetry, Tempo, Prometheus, and Grafana
  • Ship via GitHub Actions CI/CD pipelines with Docker and ECR
  • Work with external integrations including Auth0, GraphHopper, PostHog, and Sentry
  • Leverage AI-assisted development tools (Claude) as part of your daily workflow
  • Participate in architecture decisions and technical direction – your opinion will carry weight

Qualifications

What We're Looking For

Must-haves:

  • 5+ years of professional backend development in Java and/or Kotlin
  • Fluent in Polish and English
  • Solid understanding of distributed systems design, microservice patterns, and event-driven architecture
  • Hands-on production experience with AWS (ECS, Lambda, S3, RDS or DynamoDB)
  • Experience with relational databases (PostgreSQL) and NoSQL (DynamoDB or similar)
  • Strong command of Docker and containerized deployments
  • Experience with CI/CD pipelines – we use GitHub Actions
  • Clean code as a practice, not a talking point – you write code that your colleagues can confidently extend
  • Genuine ability to self-direct: you can take a loosely defined problem, break it down, make decisions, and deliver

Strong plus:

  • Kotlin specifically (greenfield services are Kotlin-first)
  • Experience with message brokers (RabbitMQ, SQS/SNS)
  • Familiarity with observability tooling (OpenTelemetry, Prometheus/Grafana stacks)
  • Background in logistics, routing, geospatial, or supply chain domains
  • Experience integrating third-party APIs (auth providers, mapping/routing engines, analytics)
  • Familiarity with AI-assisted development tools

How We Work

  • Small team, high trust – no micromanagement, no approval chains for every decision
  • GitHub-centric workflow – PRs, reviews, and automated pipelines keep quality high without bureaucracy
  • Observability-first – we monitor, alert, and fix things before users notice
  • Clean code culture – we refactor, we review, we don't let tech debt compound silently
  • AWS-native – we use managed services where they make sense and containers everywhere else

What We Offer

  • Competitive salary benchmarked to your market
  • Remote-friendly setup (we care about output, not location)
  • Direct impact on a product used by global logistics professionals every day
  • Work in a genuinely interesting domain – intermodal routing is hard, and the problems are real
  • A lean, senior team where your architecture decisions actually ship
  • AI tooling as a first-class part of the workflow – not an afterthought

Additional Information

Are you the perfect match?

Send your portfolio, CV, and a short message about why you’re the perfect match to us

Want to know more?

Do you have any questions about this position? Feel free to contact our technical lead Sylwester Wieczorkowski

( [email protected])

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against ProMedia Group's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on ProMedia Group's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    ProMedia Group's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.